Inorganic chemistry Patent Leaders

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Patents per Year

Top Inventors

Rank ↑	Inventor ↕	Patents ↕	Primary Company ↕
1	Shou-Shan Fan	102	Foxconn
2	Stacey I. Zones	75	Chevron
3	Kai-Li Jiang	65	Foxconn
#4	Aruna Zhamu	61	Nanotek Instruments Group
#5	Dan Xie	61	Chevron
#6	Je Kyun Lee	47	LG
#7	Omer Refa Koseoglu	38	Saudi Arabian Oil
#8	Bor Z. Jang	37	Nanotek Instruments Group
#9	Karl G. Strohmaier	37	ExxonMobil
#10	Robert Peter Hodgkins	36	Saudi Arabian Oil
#11	Allen W. Burton	33	Chevron
#12	Ermanno Filippi	33	Casale Sa
#13	Gunther Schimmel	33	Hoechst Gmbh
#14	Liang Liu	33	Tsinghua University
#15	David E. W. Vaughan	32	ExxonMobil
#16	Ernest W. Valyocsik	32	ExxonMobil
#17	Ulrich Mueller	31	Basf Se
#18	Kim Aasberg-Petersen	29	Haldor Topsøe A/S
#19	Gero Heymer	28	Hoechst Gmbh
#20	James M. Tour	28	William Marsh Rice University
#21	Saleh Elomari	28	Chevron
#22	Bor Z. Jang	27	Honeycomb Battery
#23	Yasushi Nishikawa	27	Kaneka
#24	Jae Young Choi	26	Samsung
#25	John L. Burba, III	26	—
#26	Raymond Francis Drnevich	26	Praxair Technology
#27	Avelino Corma Canos	25	Consejo Superior De Investigaciones Cientificas (Csic)
#28	Hartwig Rauleder	25	Evonik Degussa Gmbh
#29	Puneet Gupta	25	Tela Innovations
#30	Babiker Yagoub Elhadi Abdulkhair	24	Imam Mohammad Ibn Saud Islamic University
#31	Mark E. Davis	24	Caltech
#32	Reinhard Gradl	24	Hoechst Gmbh
#33	Changdong Li	23	Guangdong Brunp Recycling Technology Co.
#34	Henry R. Costantino	23	Group14 Technologies
#35	Keiji Itabashi	23	The University Of Tokyo
#36	Kyoung Shil Oh	23	LG
#37	Machteld M. Mertens	23	ExxonMobil
#38	Michael W. Smith	23	Bnnt
#39	Rodney John Allam	23	8 Rivers Capital
#40	Ulrich Müller	23	Basf Se
#41	Akihiro Sakai	22	Panasonic
#42	Kuo-Wei Huang	22	King Abdullah University Of Science And Technology
#43	Peter Kleinschmit	22	Degussa Ag
#44	Shankar Nataraj	22	Air Products And Chemicals
#45	Stephen J. Miller	22	Chevron
#46	Alwyn Pinto	21	ICI
#47	Guang Cao	21	ExxonMobil
#48	Hong-Kyu Park	21	LG
#49	Jean-Marie Basset	21	King Abdullah University Of Science And Technology
#50	Jens Paulsen	21	Umicore
#51	Kevin C. Jordan	21	Bnnt
#52	Nicolas Bats	21	Ifp Energies Nouvelles
#53	Raffaele Ostuni	21	Casale Sa
#54	Stanford R. Ovshinsky	21	Energy Conversion Devices
#55	Thomas J. Pinnavaia	21	Board Of Trustees Operating Michigan State University
#56	Umberto Zardi	21	Ammonia Casale Sa
#57	Yang Wei	21	Foxconn
#58	Cheol Hee Park	20	LG
#59	Peter Mølgaard MORTENSEN	20	Haldor Topsøe A/S
#60	Sathiyamoorthy Murugesan	20	King Abdullah University Of Science And Technology
#61	Tapesh Yadav	20	Nanoproducts
#62	Tracy Margaret Davis	20	Chevron
#63	Xiang-Dong Peng	20	Air Products And Chemicals
#64	Bing Zhou	19	Headwaters Technology Innovation Group
#65	Daniel Alfred Boryta	19	Chemetall Foote
#66	David J. Edlund	19	Idatech
#67	Dallas B. Noyes	19	Seerstone
#68	Gregory J. Lewis	19	Uop
#69	Sumio Iijima	19	Nec
#70	Wang Mo Jung	19	Lg Energy Solution
#71	Adeola Florence Ojo	18	Chevron
#72	Andrei-Nicolae Parvulescu	18	Basf Se
#73	Avetik Harutyunyan	18	Honda Motor Co.
#74	Clarence D. Chang	18	ExxonMobil
#75	Kunihiro Ukai	18	Panasonic
#76	Richard E. Smalley	18	William Marsh Rice University
#77	Yumi Nakagawa	18	Chevron
#78	Armin Olbrich	17	H.C. Starck
#79	Gunter Lailach	17	Bayer Healthcare
#80	Hideo Hosono	17	Japan Science And Technology Agency
#81	Jonathan C. Stevens	17	Bnnt
#82	Juliane Meese-Marktscheffel	17	H.C. Starck
#83	Mark C. Hersam	17	Northwestern University
#84	Michael A. Fetcenko	17	Ovonic Battery Company
#85	Peng Liu	17	Tsinghua University
#86	Robert H. Hauge	17	William Marsh Rice University
#87	Takashi Inada	17	Kaneka
#88	Tae Hoon Kim	17	Samsung
#89	Tatsuya Okubo	17	The University Of Tokyo
#90	Tetsuya Asano	17	Panasonic
#91	Timothy Christopher Golden	17	Air Products And Chemicals
#92	William C. Bauman	17	—
#93	Yusuke Ohta	17	Kaneka
#94	Aadesh Harale	16	Saudi Arabian Oil
#95	Anissa Bendjeriou Sedjerari	16	King Abdullah University Of Science And Technology
#96	Anna Lee Tonkovich	16	Velocys
#97	Christoph Kallfass	16	Diehl Aviation Gilching Gmbh
#98	Hitoshi Sumiya	16	Sumitomo Electric Industries
#99	Hyeon Jin Shin	16	Samsung
#100	Johannes Petrus Verduijn	16	ExxonMobil

Top Companies

Rank ↑	Company ↕	Patents ↕
1	ExxonMobil	437
2	Chevron	338
3	E.I. Du Pont De Nemours And	283
#4	Basf Se	275
#5	Air Products And Chemicals	215
#6	Samsung	212
#7	LG	200
#8	Unknown	166
#9	L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude	164
#10	Hoechst Gmbh	156
#11	Haldor Topsøe A/S	138
#12	Saudi Arabian Oil	138
#13	Uop	136
#14	Degussa Ag	133
#15	Shell Oil Compny	123
#16	University of California	123
#17	GE	123
#18	Panasonic	122
#19	Tsinghua University	121
#20	Toyota	120
#21	Foxconn	117
#22	Wacker Chemie Ag	114
#23	Sumitomo Chemical	110
#24	Bayer Healthcare	109
#25	Fmc	99
#26	US Dept of Energy	99
#27	Sumitomo Electric Industries	98
#28	CNRS	97
#29	Praxair Technology	94
#30	US Air Force	88
#31	Honeywell	86
#32	Olin	84
#33	Phillips Petroleum	79
#34	Council Of Scientific And Industrial Research	77
#35	Ethyl	77
#36	MIT	77
#37	Mitsubishi Materials	77
#38	Sumitomo Metal Mining Co.	77
#39	Evonik Degussa Gmbh	76
#40	KAIST	76
#41	Shin-Etsu Chemical Co.	76
#42	Gte Products	75
#43	General Motors	74
#44	ICI	72
#45	Aluminum Company Of America	71
#46	CEA	69
#47	Ifp Energies Nouvelles	68
#48	Mitsubishi Electric	67
#49	Ngk Insulators	67
#50	Honda Motor Co.	65
#51	Tokuyama	65
#52	Korea Institute Of Science And Technology	64
#53	Rhone-Poulenc Chimie	63
#54	Showa Denko K.K.	61
#55	Nissan Chemical Industries	60
#56	Nalco Chemical	59
#57	National Institute Of Advanced Industrial Science And Technology	59
#58	William Marsh Rice University	59
#59	The Boc Group Limited	58
#60	Battelle Memorial Institute	57
#61	Monsanto Technology	57
#62	Kabushiki Kaisha Toshiba	55
#63	Linde Gmbh	55
#64	Institut Francais Du Petrole	54
#65	Metallgesellschaft Ag	54
#66	Northwestern University	54
#67	Asahi Glass Co.	51
#68	Union Carbide	51
#69	IBM	51
#70	Akzo Nobel N.V.	50
#71	Mitsubishi Gas Chemical Company	50
#72	Rhodia Operations	50
#73	Toda Kogyo	50
#74	KFUPM	49
#75	Dow Corning	47
#76	Japan Science And Technology Agency	47
#77	Intel	46
#78	Lg Energy Solution	45
#79	Nec	45
#80	ITRI	44
#81	Stauffer Chemical	44
#82	Cabot	43
#83	Casale Sa	43
#84	Westinghouse Electric	42
#85	Engelhard	41
#86	Ppg Industries	41
#87	Union Oil Company Of California	41
#88	NASA	40
#89	Caltech	39
#90	Eastman Kodak	39
#91	Kaneka	39
#92	Occidental Chemical	38
#93	The University Of Tokyo	38
#94	Atochem	37
#95	Nanotek Instruments Group	37
#96	Solvay Sa	37
#97	Canon	37
#98	Sony	37
#99	Arkema France	36
#100	Central Glass Company, Limited	36

Inorganic chemistry Patent Leaders All Time

Patents per Year

Top Inventors

Top Companies